211202022212 has 12 divisors (see below), whose sum is σ = 370769482860. Its totient is φ = 105267884256.

The previous prime is 211202022211. The next prime is 211202022277. The reversal of 211202022212 is 212220202112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5681239876 + 205520782336 = 75374^2 + 453344^2 .

It is not an unprimeable number, because it can be changed into a prime (211202022211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83280287 + ... + 83282822.

It is an arithmetic number, because the mean of its divisors is an integer number (30897456905).

Almost surely, 2^211202022212 is an apocalyptic number.

It is an amenable number.

211202022212 is a deficient number, since it is larger than the sum of its proper divisors (159567460648).

211202022212 is a wasteful number, since it uses less digits than its factorization.

211202022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166563430 (or 166563428 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211202022212 its reverse (212220202112), we get a palindrome (423422224324).

The spelling of 211202022212 in words is "two hundred eleven billion, two hundred two million, twenty-two thousand, two hundred twelve".